B farming produce a surplus of food
Before the slave trade, African culture was agricultural and advanced. The African slave trade started when the leaders of European countries wanted to find new land. Slavery started for many reasons like money, greed, and high demand for labor.
Answer: Eli Whitney
Explanation: In 1798 Eli Whitney built a firearms factory near New Haven. The muskets his workmen made by methods comparable to those of modern mass industrial production were the first to have standardized, interchangeable parts.